coal-bed

英 ['kəʊlb'ed] 　 　 美 ['kəʊlb'ed] 　 　
  • n. 煤层

coal-bed的相关资料：

临近单词

coalite coal coal-cutting machine coal - mining wastes coal roadway tunneling coal bearing formation coal-seam uncovering coal chemical industry coal-bearing stratum coaltivie joint action Coal flotation reagent coal-tar hydrocarbon
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